BBC - WebWise - How do I zip and unzip documents?

BBC - WebWise - How do I zip and unzip documents?

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日期:2026-04-25
People often compress files to save disk space. Some files can be compressed a lot, and this is true of Microsoft Office’s old Word .doc and PowerPoint .ppt files. (The new Microsoft Office file formats already have zip files inside.) Some types of file c...看更多